Customer Reviews for Casio ClassWiz 12-Digit Battery/Solar Powered Scientific Calculator, Black (FX-991CW)
Casio ClassWiz 12-Digit Battery/Solar Powered Scientific Calculator, Black (FX-991CW) is In-store only
Item # : 24555520
Model # : FX-991CW
- This calculator with four-gradation natural textbook display (10 + 2 digits) is perfect for teaching and studying
- Portable calculator with fast calculation for smooth performance in class or during examinations
Price is $22.99
30-min pickup
See alternate delivery items
8 reviews
Most helpful positive review
Posted Jul 8, 2025
Powerful advanced scientific calculator
The spreadsheet capability on this calculator is awesome but the best part about it is that you can create a QR code to create graphs online!!
VS
Most helpful critical review
Posted Sep 29, 2024
Casio Calculator
I was looking for a basic calculator and this one is way over the top
CATHERINE P.
Verified Buyer
Posted Aug 10, 2025
Great calculator lousy instructions
Instructions enclosed are infinitesimal. Downloadable instructions are extremely time consuming to figure out. Don't buy this one if you want to use it as soon as you take it home. Plan on hours of practice to do anything more complicated than simple arithmetic.
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Response from Staples :
Hi Catherine Thanks for reaching out to us about this. I'm sorry to hear you're dissatisfied with the Casio Calculator. ^MS
August 14, 2025
MARTIN O.
Posted Jul 8, 2025
Powerful advanced scientific calculator
The spreadsheet capability on this calculator is awesome but the best part about it is that you can create a QR code to create graphs online!!
0up votes 0
0down votes 0
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MARYELLEN B.
Verified Buyer
Posted Sep 29, 2024
Casio Calculator
I was looking for a basic calculator and this one is way over the top
0up votes 0
5down votes 5
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Nikhil
Verified Buyer
Reviewed at:
staples.ca
Posted Oct 12, 2023
Classic for everyone
Impressed with this version. A powerful tool for accounting, programming and beyond.
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